Been a while, here's a bunch of deltarune inspired cards! (I know some people have done stuff like this before, this is my own version) Credits to interestingpost from reddit for the SAs!
"Don't forget, I'm with you in the dark" Deltarune song
SA: Tension Point
SA1: When blocking gain 5% star power meter per hit
SA2: When using star power at full meter gain 2 stacks of enrage and regen (both removed upon deactivation of star power)
"How would you feel about losing your face?" (Susie)
SA: Rude Buster
SA1: When hitting a attacking or dashing opponent gain one stack of enrage for 7 seconds
SA2: Deal an additional 3% dmg per enrage stack
"I hope we can be good friends!" (Ralsei)
SA: Heal Prayer
SA1: When hitting a opponent with a projectile gain a stack of regen for 3 seconds
SA2: When using a level 3 block buster heal 25% hp to every alive team member
"I CAN DO ANYTHING!" ( Jevil)
SA: Devilsknife
SA1: When hitting a opponent you have a 20% chance to inflict a random debuff for 10 seconds (excluding doom)
SA2: When getting hit you have a 25% chance to gain a random buff
"I only play mobile games" (Queen)
SA: Acid Barrier
SA1: 30% chance when spawning a tear to gain one stack of miasma and armor for 7 seconds
SA2: Gain 1 stack of barrier for each miasma stack that wears off
"Are you watching heaven!? It's time for my comeback special!" (Spamton Neo)
SA: Hyperlink Blocked
SA1: When hitting a opponent with a beam or headrone attack, gain either enrage, regen or armor for 7 seconds
Sa2: When a buff runs out inflict either cripple, bleed of armor break for 7 seconds
"This next experiment will be very, very interesting..." (W.D.Gaster?)
SA: Photon Reading
SA1: When transmuting into the opponent’s elemental inflict 3 debuffs and gain 3 buffs (excluding doom)
SA2: When either fighter is effected by a debuff reduce the enemies blockbuster meter by 1% and gain 1% blockbuster meter every second